Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Mathew Friedman, M.D., PH.D.

Radiation Oncology Physician in Gallatin, TN · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1235427220

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Mathew Friedman

Credential M.D., PH.D.

Sex Male

Practice address 225 Big Station Camp Blvd Ste 104, Gallatin, TN, 37066

Phone (615) 328-6170

Fax (615) 328-6187

Enumeration date Jul 12, 2011

Last updated in NPPES Sep 13, 2019

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 54399 (TN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
284164	Other	NY	NYS LICENSE
J400318417	Other	NY	MEDICARE PTAN
Q051040	Medicaid	TN	-
7100616510	Medicaid	KY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Jeffrey Friedman's NPI record?

Cross-check NPI 1235427220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1235427220 active?

Yes, as of the latest NPPES snapshot, NPI 1235427220 is active (record last updated 2019-09-13).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-13.